iPhone 6S not charging

I purchased a new iPhone 6S from a Target store less than 6 months ago. It is now not charging, I have checked the plug, and cord they are working. I have also done a hard reset of the phone several times, and that did not fix the problem. My local Apple store in Reno, Nevada is closed due to the pandemic. I need to get my phone fixed or replaced ASAP, Canyou help me?